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Start out by finding the location for the certificates to be stored:

openssl version -d
OPENSSLDIR: "/usr/lib/ssl"

Directories inside OPENSSLDIR is usually a symbolic link to /etc/ssl, but YMMW.

Now upload the CA certificates in PEM format into OPENSSLDIR/certs.

Next use this script to create the symbolic links inside the certs directory:

# usage: filename [filename ...]

for CERTFILE in $*; do
  # make sure file exists and is a valid cert
  test -f "$CERTFILE" || continue
  HASH=$(openssl x509 -noout -hash -in "$CERTFILE")
  test -n "$HASH" || continue

  # use lowest available iterator for symlink
  for ITER in 0 1 2 3 4 5 6 7 8 9; do
    test -f "${HASH}.${ITER}" && continue
    ln -s "$CERTFILE" "${HASH}.${ITER}"
    test -L "${HASH}.${ITER}" && break

Now go into OPENSSLDIR/certs and run the script: CA-certificate1.pem CA-certificate2.pem CA-certificate3.pem

Now openssl will verify certificates signed by these CA's.

indexes/import_ca_certificates_for_openssl_to_use.txt · Last modified: d/m/Y H:i by domingo